Sash-balance



(No Model.)

P. F. WBSTERPIELD.

SASH BALANGE.

No. 244,101. Patented July 12,1881.

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FINLEY F. WESTERFIELD, OF ST. LOUIS, MISSOURI.

SASH-BALANCE.

SPECIFICATION forming part of Letters Patent No. 244,101, dated July 12, 1881.

Application filed May 12, 1881. (No model.) 7

To all whom it may concern:

Be it known that I, FINLEY F. WESTER- FIELD, of St. Louis, in the State of Missouri, have invented a new and useful Improved Sash- Operator, of which the following is a specification.

My invention relates specially to sash-operators designed to raise and lower the outer or upper window-sash, which is counterpoised by 10 a sash-weight in the box-frame.

The prominent object of my invention is to provide within ready reach of the operator convenient means to facilitate the handling, raising, and lowering of the said upper windowsash. I attain the said object by the mechanism illustrated in the accompanying drawings, in which Figure 1. is a front elevation of an ordinary window box-frame containing an upper win- (low-sash counterbalanced by weights, cords, and pulleys, my improvements being shown in the said figure as consisting of the cord fastened at opposite points to the frame, passing overpulleys and through screw-eyes or staples,

2 5 and terminating in the endless loop, the dotted linesrepreseutingthe positions of the cord and window-sash when same are partly lowered, and the arrowsindicatin g the direction the cord m'oves when the window-sash is being lowered. Fig. 2 is a cross or transverse section taken on line a; :r of Fig. 1. Fig. 3 is a side elevation of the box-frame, showing its inner and outer parting-strips, the window-sash being in section, and my improvements shown applied.

3 5 Fig. 4 shows a modification in which sheavepulleys are substituted in place of the screwpulleys, and the cord attached to a window having a segmental or curved top.

Similarletters refer to similar parts throughout the several views.

A represents the box-frame, in which are contained the weights B, fastened to cord a, passing over roller 12, and fastened to the window-sash C in manner usual, to counterbalance 4 5 said sash.

I lay no claim to counterpoising the windowsashes, (upper and lower,) or arranging same to be raised and lowered between the usual respective parting-strips, a a a (See Fig. 3.)

My improvements consist in combining with the aforesaid balanced upper window-sash the sash-operator constructed and operating as follows:

d d are pulleys screwed by their shank into the box-frame. These pulleys are respectively 5 5 secured to the opposite upper corners of the box-frame A, between the inside partin g-strips,

a a hence said pulleys are directly in line with the travel of the lower or inside window.- sash.

e e are the upper screw-eyes or staples. e c are the lower screw-eyes or staples. The upper screw-eyes, c e, are respectively screwed to the opposite upper corners of the windowsash C, while the lower screw-eyes, e 0 are similarly fastened to the lower opposite corners of said window-sash. (See Figs. 1, 2, 3.)

F is the cord. One end of the cord is secured properly at f to the box-frame, (see Figs.

1, 2;) thence said cord passes upward through y the screw-eye e, thence along the top edge of the window-sash 0 through the opposite screweye 0, thence down to form the endless loop F, (which should extend within proper reach of the operator thence said cord continues to 7 5 pass in a similar manner, but in reverse direction, through the pulleysviz., first upward and through the upper pulley, cl, thence along the under face of the box-frame over to and through the pulley d, thence down and through the bottom screw-eye c thence along the side of the window-sash over to and through the bottom screw-eye c lastly, said end of the cord is similarly fastened to the box-frame A at f, as shown. The operation is as follows: By taking hold and pulling downward that side of the cord marked y the window-sash lowers, the purchase being at top, by the tension of the cord upon the upper screw-eyes or staples, causing the window-sash to lower, the latter at same time by its bottom staples drawing the bottom transverse part of the cord along with it. (There is always sufficient space between the upper and lower window-sashes for said motion on part of the cord.) While the windowsash is lowering the entire cord moyges in the direction of the arrows clearly shown in Fig. 1. The reverse action or motion on part of the cord takes place in pulling downwardthe other side of the loop, causing the'windowsash to rise. Therefore, in both operations viz., to raise and lower the window-sash-the cord is pulled downward by the operator. The pulling action on one side of the cord forming the loop raises the sash, While the like pulling action on the other side of the loop lowers the sash. As apparent, the window-sash can be raised or lowered to any distance desired, and held fast by simply fastening the loop end of the cord.

g is a guide-roller to prevent binding action on part of the Window-sash 0 when the pull on the cord takes place. Said roller 9 is therefore secured near the upper right-hand corner of the said window-sash, and so that the roller bears against the edge of the partingstrip a. 15 (See Figs. 1, 2.)

What I claim is- The combination, with a counterbalanced upper window-sash, of the pulleys d d, the eyescrews 0 e e 6 and the cord F, having both its 20 ends secured to the box-frame, and passingover the said pulleys and through the said screweyes, and terminating in an endless loop, substantially as set forth.

FINLEY F. WESTERFIELD.

Witnesses:

WILLIAM W. HERTHEL, JOHN W. HERTHEL. 

